21179104

素因数分解:

$2^5\times {\mathrm{137}}^1\times {\mathrm{4831}}^1$

素因数の和:4978

約数の個数: 24

約数和(自身を含む): 42009408

約数和(自身を除く): 20830304

約数列:

[1, 2, 4, 8, 16, 32, 137, 274, 548, 1096, 2192, 4384, 4831, 9662, 19324, 38648, 77296, 154592, 661847, 1323694, 2647388, 5294776, 10589552, 21179104]

約数ペア:

[(1, 21179104), (2, 10589552), (4, 5294776), (8, 2647388), (16, 1323694), (32, 661847), (137, 154592), (274, 77296), (548, 38648), (1096, 19324), (2192, 9662), (4384, 4831)]